Coupling-hook



UNITED STATES PATENT OFFICE. I

JAMES D.` GWN, o Ev Non'rn AMHEEs'r, omo.

couPLlN'e-HooK.

sPEcrrrArroN 'forming pm Letters Parent 110.367.969. dated August 91887;

` -Application filed March 21, IBI. Serial No. 231,728. (No model.)

To all'whom Lft may concern.

Be it known that I, JAMESYD. GAwN, a citin zen lofthe United States, residing at North Amherst, in the county of Lorain and State of Ohio, have invented a newand useful Goupling-Hook, of which the following is aspecilisation. v i

A objects by means of the mechanism illustrated identical in form, size,

in the accompanying drawings, in which- Figure I is,avie\v showing the hooks and their position when coupled together. Fig. II shows the hooks in positionfor coupling.

, Similarletters referl to similar partsth roughout the several views. A and Bv represent two hooks, which are and construction, and may be ol' any material.

arepresents an eye formcd'in the back end of the hooks for'the convenience 0f attaching them to a-rope, chain, or other desired object. b represents a shank to. the hooks'. H represents the head or hook proper, which I prefer to make of the form shown in the draw,- ings-that is, in the form of a ring the diameter of' the hole in the. center of which is made 'just enough larger than thedi-ameter of the' material forming the head to permit the one working in the other freely.

t `At any place, preferably on one side the l head, the hooks are cnt-through to a point a very small distance` beyond the center from each side, as represented at c c, the sides `of said cnt formingwith'each other an angle of ninety degrees and with the sides of said head an angle of forty-ive degrees.

Each hook is made and cut exactly alike,.

and in order'to couple one with the other the openings in each are turned together and the hooks held at right angles to eachother, when 'the parts c c of one hook will enter and pass through the opening made bythecut herein` l before described.

When one hook has .been passed into the other, it is'perfectly free to turn in any direc- 'tion, and can'only-be uncoupled by reversing the operation of coupling. The position in which it is necessary to bring the hooks to unnary use. hooks are very small in proportionto their strength, uncouple and coupleveryeasily when brought into proper position, and are `perfectly safe from uncoupling while in use.

vcouple is one that will not take place in ordil- By reason of the construction the Having fully described my invention, what I claim, and desire to secure by Letters Patent of the United States, is-

rl`he combination ofthe two herein-described hooks of the same shape and forni, each of which is provided with a single opening,-with. the ends forming'the opening .nearly meeting in the center and cut back at an angle of forty? 

